cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A359714 Central terms of triangle A359670; a(n) = A359670(2*n,n) for n >= 0.

Table of values

n a(n)
0 1
1 6
2 68
3 970
4 15627
5 271698
6 4980320
7 94919382
8 1864060550
9 37486601966
10 768542230128
11 16010270917186
12 338044149765168
13 7220000851821450
14 155743662496011552
15 3388779105788095886
16 74299386925266352272
17 1640069094618726916032
18 36421678762652448251540

List of values

[1, 6, 68, 970, 15627, 271698, 4980320, 94919382, 1864060550, 37486601966, 768542230128, 16010270917186, 338044149765168, 7220000851821450, 155743662496011552, 3388779105788095886, 74299386925266352272, 1640069094618726916032, 36421678762652448251540]